“Unlike a painting or drawing, which conflates the duration of its making with the inner subjective time of the maker’s memory and mental processes, the making of the photographic image occurs at once. The determinable datable character of the photograph and its machine-like exactness of whatever detail falls within the lens’s focus give the camera image a privilege among images in regard to the past. Each photograph bears a distinct and unique message.” (Trachtenberg, 1989, pp. 5-6)